I have completed a round of LE style aprons which can be purchased bare (make your own) or to replace plastic Tron Pros (interactive LE style).
These are the "foot style" slip in metal aprons that have been used in Stern machines starting in 2002.
Each kit comes with the "feet" that will be needed to replace a plastic apron.
Tron Pro upgrade kits comes with the wire harness needed to make it interactive and the translucent triangles to replicate the LE look.

http://www.hookedonpinball.com/store/c10/Tron.html

They are up on my site now Hookedonpinball.com

Tron_apron_2_(resized).jpg

tron_apron_1_(resized).jpg

Example of what it will do once installed on a tron.
Also looks great on Avatar or for that matter any pin with Chrome mirror blades would look great with one.
Will post pictures with one installed on a Metallica later.